[77 Canamman]

The correctly formed 1973-1977 upper radiator hose has not been available from GM for many years. Does anyone know if there is a currently available aftermarket brand that shapes them like the vintage images below?







As compared to the ones in my cars:

1973 GTO:



1977 Can Am:

[BR57]

Timely post. My moulded upper gave out two weeks a go. I have a high quality Prestone universal in place but would prefer the factory look.

[77 Canamman]

This is a factory photo of a pre-production 1974 SD-455 Trans Am. Apparently they used the same style upper hose that is on my GTO and Can Am.

[BR57]

That is good info. Can I assume PY carries the Can Am and Firebird hoses?

Being a Canadian hybrid my car has Pontiac style radiator and fan shround with Chevrolet power BUT hoses are not the same as a Chevelle. The hoses you show Rick for your car's and Firebird look like they would work.

My photo's attached show my set up pre hose split and with universal installed.

[Held for Ransom]

Like this?

[BillyGoat73]

Originally Posted by Held for Ransom

Like this?

This hose is the correct shape and looks like it belongs on a Grand Prix. It is too long in the front for an A body car, but can be cut back on the radiator end to fit properly.

[Brian Baker]

Originally Posted by Held for Ransom

Like this?

Top hose is still a tad different than the one in Rick's post.

Bottom hose looks close, but notice the incorrect for '73 thermostat housing.

Rick, I think what happened is somewhere along the line, maybe as far back as the 70's, they figured out that the hose that works on the F-body will also work on the A-body, so to cut costs, they just went with one replacement hose for both.

[77 Canamman]

Naturally, it was a cost cutting move on behalf of the aftermarket companies.

[77 Canamman]

This is Jim Early's fully restored 73 GTO. Note the correct hose:



Pete Rust's restored Can Am:



Wonder if these are NOS GM hoses, or an aftermarket brand...

[Brian Baker]

Pete and his son have done a fabulous job restoring and preserving that Can Am. Saw them at Norwalk last year, parked right next to them in the show field. Wish I had more time to sit and chat with them, but with our only being there for one day, I was "stretched thin" between the show field and visiting with old friends on the pit side.

[BR57]

I called around Toronto and only NAPA had a moulded hose for the LeMans 350,400,455. I asked them to cross reference Firebird and it came up the same except the 301 was added to the list. The NAPA # is 7573. I bought it and tried putting it on my car. Of course I have an odd ball engine. What I found was that it worked if I put it on backwards and trimmed 4". Works for me. I include photos so you can see what NAPA supplies as the hose for the LeMans application. It sure looks like some of the photos above.

[Alvin]

Originally Posted by 77 Canamman

This is a factory photo of a pre-production 1974 SD-455 Trans Am. Apparently they used the same style upper hose that is on my GTO and Can Am.

Image (below) scanned from 1991 Year One Catalog #R411 1967-1981 FIREBIRD

PN 47630N Shown 1971-79 models Upper hose…all Pontiac (Firebird) V8’s except 301.



Also listed in GTO/Lemans Catalog #R5106 as:

Upper Hose 1971-72 V8 Models
47630N New GM

[77 Canamman]

The upper hose on my Can Am was getting old, so I replaced it with an off the shelf molded hose from AutoZone, which is exactly likr the replacement on it when I bought it. Still seeking the more complex multiple curved hose that was OE.